What is an air entrainment nebulizer?

Background: The air entrainment jet nebulizer (AEJN) is a type of jet nebulizer designed to deliver similar aerosol dose in less time and are marketed as a faster delivery device.

Can you use humidity with a simple mask?

A simple mask should be administered for only a few hours because of the low humidity delivered and the drying effects of the oxygen gas.

What is the approximate FiO2 if 5 lpm of air is mixed with 5 LPM of o2?

40%
At 5 LPM, the approximate FiO2 is 40%. What percentage of oxygen is 6 LPM? At 6 LPM, the approximate FiO2 is 44%.

How do you use a high flow nasal cannula?

HFNC is best applied in a monitored setting such as the intensive care unit, intermediate care floor, or emergency department. Oxygen is delivered to the patient through wide bore nasal cannulae (picture 1). We prefer to set the flow rate first, typically at 20 to 35 L/minute (range 5 to 60 L/minute).

Why is concrete air important?

The primary use of air-entraining concrete is for freeze-thaw resistance. The air voids provide pressure relief sites during a freeze event, allowing the water inside the concrete to freeze without inducing large internal stresses.

When would you use a Venturi mask?

The venturi or air-entrainment mask is a high flow device that delivers a fixed oxygen concentration of 24% to 50%. This device is appropriate for patients who have a hypoxic drive to breathe but also need supplemental oxygen; for example, those with chronic obstructive pulmonary disease (COPD).

What is FiO2 normal range?

Natural air includes 21% oxygen, which is equivalent to FIO2 of 0.21. Oxygen-enriched air has a higher FIO2 than 0.21; up to 1.00 which means 100% oxygen. FIO2 is typically maintained below 0.5 even with mechanical ventilation, to avoid oxygen toxicity, but there are applications when up to 100% is routinely used.

How do I know if I have FiO2?

How to Calculate FIO2 from Liters. Example: A patient has a pO2 of 85mmHg on ABG while receiving 5 liter/minute of oxygen. 5 L/min = 40% oxygen = FIO2 of 0.40, the P/F ratio = 85 divided by 0.40 = 212.5.

Is CPAP high flow oxygen?

HFNC delivers a heated, humidified airflow, and the FiO2 can be varied between 21% and 100% [8]. HFNC, like CPAP, is a high flow system and is able to generate a positive end expiratory pressure, but unlike CPAP it does not have a valve [9].

What is the purpose of the air entraining agent?

Air-Entraining Admixtures and What They Do: Air-entraining admixtures facilitate the development of a system of microscopic air bubbles within concrete during mixing. They increase the freeze-thaw durability of concrete, increase resistance to scaling caused by deicing chemicals, and improve workability.

How do you prevent air pockets in concrete?

Use aggregate that is more uniform in shape. Irregular shaped pieces of aggregate tend to make the concrete less fluid. Techniques used during vibration can eliminate most surface voids. Vibrating both the outside and inside of your mold will draw most air and water bubbles away from the surface of the concrete.